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Conclusions 1. Concept of quantised vortex bundle strengthens the analogy between quantum turbulence and classical turbulence. 2. Quantised vortex bundles are so robust that they can undergo reconnections. 3. Large amount of coiling of vortex strands confirms Kerr (Nonlinearity 9, 271, 1996) and the conjecture by Holm and Kerr (PRL 88, 244501, 2002) on the generation of helicity in nearly singular events of the Euler equation.